Raymond IV of Toulouse, also known as Raymond of Saint-Gilles, was a prominent nobleman in the 11th century. He was born around 1041 and became the Count of Toulouse, a significant territory in southern France. Raymond is best known for his role in the First Crusade, where he led a contingent of knights and played a crucial part in the capture of Jerusalem in 1099. As a leader, Raymond was known for his piety and commitment to the Christian faith. He was instrumental in establishing the County of Tripoli after the Crusade, further expanding his influence in the region. His legacy includes both military achievements and contributions to the spread of Christianity in the Holy Land.